In Riley World I recently signed an IFA with similar projected splits/pitches, but his current DUR/STA at 18 yrs old is 25/42. He's pitching great, but he can only give me about four innings per start right now. I imagine by the time he gets to the bigs he'll be only about five innings, six at very most.
BTW I hate 14 DUR. If that's for real, I don't think he'll be able to pitch regularly in a five man rotation unless you keep his pitch count way down.